This adds a call to dm_remove_devices_flags() to do_bootm_linux()
so that drivers that have one of the removal flags set (e.g.
DM_FLAG_ACTIVE_DMA_REMOVE) in their driver struct, may do some
last-stage cleanup before the OS is started.
arm and x86 already did such, and we should do the same for riscv.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
Changes in v3: None
Changes in v2:
- new patch to add dm_remove_devices_flags() call to do_bootm_linux()
for riscv bootm
arch/riscv/lib/bootm.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/lib/bootm.c b/arch/riscv/lib/bootm.c
index a7a9fb9..2b5ccce 100644
--- a/arch/riscv/lib/bootm.c
+++ b/arch/riscv/lib/bootm.c
@@ -9,9 +9,11 @@
#include <common.h>
#include <command.h>
#include <image.h>
-#include <u-boot/zlib.h>
#include <asm/byteorder.h>
#include <asm/csr.h>
+#include <dm/device.h>
+#include <dm/root.h>
+#include <u-boot/zlib.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -57,6 +59,13 @@ int do_bootm_linux(int flag, int argc, char *argv[],
bootm_headers_t *images)
/* we assume that the kernel is in place */
printf("\nStarting kernel ...\n\n");
+ /*
+ * Call remove function of all devices with a removal flag set.
+ * This may be useful for last-stage operations, like cancelling
+ * of DMA operation or releasing device internal buffers.
+ */
+ dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
+
cleanup_before_linux();
if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
--
2.7.4
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